C fseek()

The fseek() function is used to set the file pointer to the specified offset. It is used to write data into file at desired location.

Syntax:

snippet

int fseek(FILE *stream, long int offset, int whence)

There are 3 constants used in the fseek() function for whence: SEEK_SET, SEEK_CUR and SEEK_END.

Example:

snippet

#include 
void main(){
   FILE *fp;

   fp = fopen("myfile.txt","w+");
   fputs("This is rookienerd", fp);
  
   fseek( fp, 7, SEEK_SET );
   fputs("sonoo jaiswal", fp);
   fclose(fp);
}

myfile.txt

Output

This is sonoo jaiswal

Related Tutorial

1 C File Handling

2 C fprintf() and fscanf()

3 C fputc() and fgetc()

4 C fputs() and fgets()

5 C fseek()

6 C rewind()

7 C ftell()

Try it

http://codeamaze.com

Contents +